In this paper,by optimizing the structure of composite billet and coating organic additives on the composite interface,the bonding of composite interface was effectively promoted. The Ag/Cu lateral composite strip was successfully prepared by the combined process of sintering in protective atmosphere and cold rolling,and the related properties were tested and analyzed. The results show that Ag/Cu lateral composite strip is distributed alternately and parallel,and the width of different Ag strips is uniform,and the dimension uniformity is good in the length direction,without waist drum and sausage phenomenon. At the same time,the 30～50 μm Ag-Cu two-phase eutectic interface layer was formed,which resulted in metallurgical bonding. The shear strength of the composite interface is greater than 230 MPa,and the composite silver bar maintains a high conductivity of 58～60 MS/m.
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